單項(xiàng)選擇題What is the first thing that happens when IPv6 is enabled on an interface on a host?()

A.A router solicitation is sent on that interface.
B.There is a duplicate address detection on the host interface.
C.The link local address is assigned on the host interface.
D.A neighbor redirect message is sent on the host interface.


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1.單項(xiàng)選擇題What action will a BGP route reflector take when it receives a prefix marked with the community attribute NO ADVERTISE from a client peer?()

A.It will advertise the prefix to all other client peers and non-client peers.
B.It will not advertise the prefix to EBGP peers.
C.It will only advertise the prefix to all other IBGP peers.
D.It will not advertise the prefix to any peers.

2.單項(xiàng)選擇題

Refer to the exhibit. Which switching feature is being tested?()

A. loop guard
B. PortFast
C. root guard
D. BDPU guard

3.多項(xiàng)選擇題Which two options does Cisco PfR use to control the entrance link selection with inbound optimization?()

A.Prepend extra AS hops to the BGP prefix.
B.Advertise more specific BGP prefixes (longer mask).
C.Add (prepend) one or more communities to the prefix that is advertised by BGP.
D.Have BGP dampen the prefix.

4.多項(xiàng)選擇題Which three combinations are valid LACP configurations that will set up a channel?()

A.On/On
B.On/Auto
C.Passive/Active
D.Desirable/Auto
E.Active/Active
F.Desirable/Desirable

5.單項(xiàng)選擇題In 802.1s, how is the VLAN to instance mapping represented in the BPDU?()

A.The VLAN to instance mapping is a normal 16-byte field in the MST BPDU.
B.The VLAN to instance mapping is a normal 12-byte field in the MST BPDU.
C.The VLAN to instance mapping is a 16-byte MD5 signature field in the MST BPDU.
D.The VLAN to instance mapping is a 12-byte MD5 signature field in the MST BPDU.

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Which three protocols or applications should be placed in a class that is configured with WRED?()

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The classic Spanning Tree Protocol (802.1 D 1998) uses which sequence of variables to determine thebest received BPDU?()

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